The 28th annual JD Power and Associates Initial Quality Study results have been released, and last year’s winner is also this year’s champ. That’s right … for the second straight year, Porsche is the top dog in the automotive pack.

Following Porsche in the ratings was Jaguar in second place, with Lexus finishing third. On the other end of the spectrum of the Initial Quality Study was Fiat, who came in dead-last by quite a wide margin; and Jeep, who finished second-to-last.

About the Initial Quality Study

JD Power and Associates is the nation’s leading independent research company. Their Initial Quality Study is based on the number of issues a new vehicle owner experiences during the first three months of ownership. This year’s study examined 207 models, measuring the number of problems reported per 100 cars – hence, the lower the score, the better the ranking. Overall, Nissan was the most improved brand, with 22 fewer problems per 100 vehicles.

This year’s study revealed that new vehicle owners had more issues with their cars than the previous year’s study. Specifically, the industry average was 116 problems per 100 vehicles, an increase of three issues from the 2013 study.

Experts surmise the increase is due to the extraordinarily high number of redesigns (the average number from redesigned vehicles was 128 issues per 100 vehicles); and the brutally cold winter, as cold-weather states had more issues than their warmer-weather counterparts.

The Initial Quality Study Best & Worst

The complete top ten was as follows, with the number of problems per 100 vehicles in parentheses:

Porsche (74)

Jaguar (87)

Lexus (92)

Hyundai (94)

Toyota (105)

(tie) Kia and Chevrolet (106)

(tie) BMW and Honda (108)

Lincoln (109)

Finally, here are the bottom five:

Mazda (139)

Scion (140)

Mitsubishi (145)

Jeep (146)

Fiat (206)

Note: The study was based on responses from more than 86,000 people, to more than 200 questions about topics such as mechanical defects and design issues.